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colbster937colbster937
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‎.gitignore‎

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**/.DS_Store
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.idea
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.gradle
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build
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run
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gradlew
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gradlew.bat

‎README.md‎

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# OriginBlacklist
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basically just a reimplementation of originblacklist but for eaglerxserver
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> [!WARNING]
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> **Velocity is the main platform I'm developing this for, bungee & bukkit will still work but will probably have some bugs and will receive less support!**
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### Download
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**[https://github.com/colbster937/originblacklist/releases](https://github.com/colbster937/originblacklist/releases)**
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### Building
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```
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$ gradle wrapper
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$ ./gradle.<bat|sh> shadowJar
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```

‎build.gradle‎

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plugins {
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id 'java'
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id 'eclipse'
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id 'org.jetbrains.gradle.plugin.idea-ext' version '1.1.8'
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id 'com.github.johnrengelman.shadow' version '8.1.1'
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id("xyz.jpenilla.run-velocity") version "2.3.1"
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}
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group = 'dev.colbster937'
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version = '1.0.0'
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repositories {
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mavenCentral()
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maven {
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name = "papermc-repo"
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url = "https://repo.papermc.io/repository/maven-public/"
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}
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maven {
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name = "sonatype"
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url = "https://oss.sonatype.org/content/groups/public/"
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}
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maven {
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name = "spigotmc-repo"
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url = "https://hub.spigotmc.org/nexus/content/repositories/public/"
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}
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maven {
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name = "md_5"
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url = "https://repo.md-5.net/content/repositories/releases/"
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}
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maven {
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name = "aikar"
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url = "https://repo.aikar.co/nexus/content/groups/aikar/"
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}
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maven {
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name = "lax1dude"
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url = "https://repo.lax1dude.net/repository/releases/"
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}
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}
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dependencies {
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compileOnly("com.velocitypowered:velocity-api:3.3.0-SNAPSHOT")
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annotationProcessor("com.velocitypowered:velocity-api:3.3.0-SNAPSHOT")
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compileOnly("org.bukkit:bukkit:1.8-R0.1-SNAPSHOT")
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compileOnly("net.md-5:bungeecord-api:1.8-SNAPSHOT")
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compileOnly("net.lax1dude.eaglercraft.backend:api-velocity:1.0.0")
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compileOnly("net.lax1dude.eaglercraft.backend:api-bungee:1.0.0")
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compileOnly("net.lax1dude.eaglercraft.backend:api-bukkit:1.0.0")
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implementation("org.yaml:snakeyaml:2.2")
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implementation("net.kyori:adventure-api:4.20.0")
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implementation("net.kyori:adventure-text-serializer-legacy:4.20.0")
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implementation("net.kyori:adventure-text-minimessage:4.20.0")
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}
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tasks {
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runVelocity {
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// Configure the Velocity version for our task.
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// This is the only required configuration besides applying the plugin.
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// Your plugin's jar (or shadowJar if present) will be used automatically.
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velocityVersion("3.3.0-SNAPSHOT")
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}
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}
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def targetJavaVersion = 17
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java {
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toolchain.languageVersion = JavaLanguageVersion.of(targetJavaVersion)
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}
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shadowJar {
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relocate 'org.yaml.snakeyaml', 'dev.colbster937.shaded.snakeyaml'
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archiveClassifier.set('all')
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}
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tasks.withType(JavaCompile).configureEach {
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options.encoding = 'UTF-8'
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options.release.set(targetJavaVersion)
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}
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/*def templateSource = file('src/main/templates')
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def templateDest = layout.buildDirectory.dir('generated/sources/templates')
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def generateTemplates = tasks.register('generateTemplates', Copy) { task ->
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def props = ['version': project.version]
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task.inputs.properties props
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task.from templateSource
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task.into templateDest
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task.expand props
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}
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sourceSets.main.java.srcDir(generateTemplates.map { it.outputs })
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project.idea.project.settings.taskTriggers.afterSync generateTemplates
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project.eclipse.synchronizationTasks(generateTemplates)*/

‎gradle.properties‎

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‎gradle/wrapper/gradle-wrapper.jar‎

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‎gradle/wrapper/gradle-wrapper.properties‎

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distributionBase=GRADLE_USER_HOME
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distributionPath=wrapper/dists
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distributionUrl=https\://services.gradle.org/distributions/gradle-8.8-bin.zip
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networkTimeout=10000
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validateDistributionUrl=true
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zipStoreBase=GRADLE_USER_HOME
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zipStorePath=wrapper/dists

‎settings.gradle‎

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rootProject.name = 'OriginBlacklist'

‎src/main/java/dev/colbster937/originblacklist/base/Base.java‎

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package dev.colbster937.originblacklist.base;
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import net.kyori.adventure.text.minimessage.MiniMessage;
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import net.kyori.adventure.text.serializer.legacy.LegacyComponentSerializer;
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import net.lax1dude.eaglercraft.backend.server.api.IEaglerXServerAPI;
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import net.lax1dude.eaglercraft.backend.server.api.IEaglerPlayer;
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import net.lax1dude.eaglercraft.backend.server.api.EnumWebSocketHeader;
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import net.lax1dude.eaglercraft.backend.server.api.event.IEaglercraftInitializePlayerEvent;
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import java.io.OutputStream;
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import java.net.HttpURLConnection;
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import java.net.URL;
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public class Base {
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private static LoggerAdapter adapter;
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private static IEaglerXServerAPI api;
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private static ConfigManager config;
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public static void setLogger(LoggerAdapter log) {
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adapter = log;
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}
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public static void setApi(IEaglerXServerAPI api1) {
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api = api1;
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}
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public static LoggerAdapter getLogger() {
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if (adapter == null) throw new IllegalStateException("Logger not initialized!");
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return adapter;
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}
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public interface LoggerAdapter {
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void info(String msg);
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void warn(String msg);
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void error(String msg);
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}
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public static void handleConnection(IEaglercraftInitializePlayerEvent e) {
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IEaglerPlayer plr = e.getPlayer();
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String origin = plr.getWebSocketHeader(EnumWebSocketHeader.HEADER_ORIGIN);
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String brand = plr.getEaglerBrandString();
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if ((origin != "null" || origin != null) && !config.blacklist.missing_origin) {
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for (String origin1 : config.blacklist.origins) {
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if (matches(origin, origin1)) {
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plr.disconnect(kick("origin", "website", origin));
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webhook(plr, origin, brand, "origin");
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return;
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}
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}
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} else {
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plr.disconnect(kick("origin", "website", origin));
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webhook(plr, "null", brand, "origin");
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}
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if (brand != "null" && brand != null) {
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for (String brand1 : config.blacklist.brands) {
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if (matches(brand, brand1)) {
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plr.disconnect(kick("brand", "client", brand));
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webhook(plr, origin, brand, "brand");
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return;
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}
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}
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}
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}
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public static boolean matches(String text1, String text2) {
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return text1.toLowerCase().matches(text2.replace(".", "\\.").replaceAll("\\*", ".*").toLowerCase());
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}
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public static String kick(String type, String easytype, String value) {
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return LegacyComponentSerializer.legacySection().serialize(
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MiniMessage.miniMessage().deserialize(
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config.messages.kick
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.replace("%blocktype%", type)
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.replace("%easyblocktype%", easytype)
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.replace("%blocked%", value)
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)
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);
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}
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public static void webhook(IEaglerPlayer plr, String origin, String brand, String type) {
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String webhook = config.discord.webhook;
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if (webhook == null || webhook.isBlank()) return;
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String addr = plr.getPlayerAddress() != null ? plr.getPlayerAddress().toString().substring(1) : "undefined";
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String protocol = plr.isEaglerXRewindPlayer()
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? (String.valueOf(plr.getRewindProtocolVersion()) != null ? String.valueOf(plr.getRewindProtocolVersion()) : "undefined")
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: (String.valueOf(plr.getMinecraftProtocol()) != null ? String.valueOf(plr.getMinecraftProtocol()) : "undefined");
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String rewind = plr.isEaglerXRewindPlayer() ? "Yes" : "No";
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String userAgent = plr.getWebSocketHeader(EnumWebSocketHeader.HEADER_USER_AGENT);
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if (userAgent == null || userAgent.isEmpty()) userAgent = "undefined";
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String payload = String.format("""
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{
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"content": "Blocked a blacklisted %s from joining",
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"embeds": [
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{
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"title": "Player Information",
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"description": "🎮 **Name:** %s\\n🏠 **Address:** %s\\n🌄 **PVN:** %s\\n🌐 **Origin:** %s\\n🔋 **Brand:** %s\\n🧊 **User Agent:** %s\\n⏪ **Rewind:** %s"
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}
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]
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}
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""", type, plr.getUsername(), addr, protocol, origin, brand, userAgent, rewind);
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try {
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HttpURLConnection conn = (HttpURLConnection) new URL(webhook).openConnection();
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conn.setRequestMethod("POST");
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conn.setRequestProperty("Content-Type", "application/json");
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conn.setDoOutput(true);
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conn.setConnectTimeout(5000);
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conn.setReadTimeout(5000);
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try (OutputStream os = conn.getOutputStream()) {
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os.write(payload.getBytes());
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}
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conn.getInputStream().close();
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} catch (Exception e) {
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getLogger().warn("Failed to send webhook: " + e);
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}
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}
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public static void reloadConfig() {
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config = ConfigManager.loadConfig(adapter);
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}
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}

‎src/main/java/dev/colbster937/originblacklist/base/Command.java‎

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package dev.colbster937.originblacklist.base;
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public class Command {
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public interface CommandContext {
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String getName();
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void reply(String message);
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boolean hasPermission(String permission);
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String[] getArgs();
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}
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public static void usage(CommandContext ctx) {
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ctx.reply("<aqua>Commands:</aqua>");
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ctx.reply("<gray> - /originblacklist reload</gray>");
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}
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public static void handle(CommandContext ctx) {
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String[] args = ctx.getArgs();
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if (!ctx.hasPermission("originblacklist.reload")) {
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ctx.reply("<red>You do not have permission to use this command.</red>");
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return;
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} else if (args.length == 0) {
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usage(ctx);
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return;
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}
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String sub = args[0].toLowerCase();
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switch (sub) {
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case "reload" -> {
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Base.reloadConfig();
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ctx.reply("<green>Reloaded.</green>");
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}
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default -> usage(ctx);
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}
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}
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}

‎src/main/java/dev/colbster937/originblacklist/base/ConfigManager.java‎

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package dev.colbster937.originblacklist.base;
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import org.yaml.snakeyaml.Yaml;
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import org.yaml.snakeyaml.LoaderOptions;
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import org.yaml.snakeyaml.constructor.Constructor;
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import java.io.File;
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import java.io.InputStream;
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import java.io.FileInputStream;
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import java.io.IOException;
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import java.nio.file.Files;
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import java.nio.file.StandardCopyOption;
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import java.util.List;
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public class ConfigManager {
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public Messages messages = new Messages();
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public List<String> subscriptions;
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public Blacklist blacklist = new Blacklist();
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public Discord discord = new Discord();
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public static ConfigManager loadConfig(Base.LoggerAdapter logger) {
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File conf = new File("plugins/originblacklist/config.yml");
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try {
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if (!conf.exists()) {
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conf.getParentFile().mkdirs();
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try (InputStream in = ConfigManager.class.getResourceAsStream("/config.yml")) {
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if (in != null) {
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Files.copy(in, conf.toPath(), StandardCopyOption.REPLACE_EXISTING);
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}
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}
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}
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LoaderOptions options = new LoaderOptions();
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Constructor constructor = new Constructor(ConfigManager.class, options);
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Yaml yaml = new Yaml(constructor);
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return yaml.load(new FileInputStream(conf));
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} catch (IOException e) {
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return new ConfigManager();
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}
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}
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public static class Blacklist {
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public List<String> origins;
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public List<String> brands;
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public List<String> players;
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public boolean missing_origin;
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public Blacklist() {}
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}
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public static class Discord {
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public String webhook;
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}
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public static class Messages {
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public String kick;
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}
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}

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